I bloody love Piet Zwart! Along with that of Tschichold his work was a major influence and inspiration to me when I was first starting out. Both are featured in Herbert Spencer's Pioneers of Modern Typography, a seminal book that I imagine is important to lots of designers. It basically showed a fledgling designer just how exciting and dynamic typography can be. Along with some of his contemporaries, Zwart's work still looks amazing and ground breaking.
One of the reasons Zwart's work is so interesting is that, like Sutnar, he worked for clients whose products were very "everyday", e.g. industrial supplies or public services, so very relevant to a designer, 60-70 years later, working for similar clients.
So I was absolutely delighted when Vernon very kindly emailed me a link to his bloody brilliant Flickr set. He explains, "One of the many nice things about studying typeface design at Reading Uni is getting special treatment at museums etc. So here are some shots of some Piet Zwart stuff from Den Haag's Meermanno Museum."
And, as if that wasn't enough, he's started an excellent typeblog. Vernon that is, not Piet.